To demonstrate that DSW is a distance measurement that can approximate the
true similarity structure of sequences, we compare DSW with Euclidean
distance and DTW on a synthetic data. In particular, we consider the shapes
of polygons [1]}, see Figure REF  for
an illustration. The number of endpoints of a shape is taken as the label.
For each polygon the original shape in two dimensional space is converted
into one dimension series by computing the distance from the center to edge
points. The resulting series is demonstrated in Figure REF .
